Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Modified silicon dioxide microspheres for absorbing heavy metal lead ion

A technology of silica and lead ions, applied in the direction of alkali metal oxides/hydroxides, alkali metal compounds, adsorption water/sewage treatment, etc., can solve problems such as lead pollution, reduce the content of heavy metal lead, and settle and separate Good performance, excellent dispersion and emulsification effect

Inactive Publication Date: 2017-06-06
吴中区穹窿山天仲高分子材料技术研究所
View PDF2 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vast majority of lead is discharged in the form of waste gas, waste residue, waste water, etc., causing large-scale lead pollution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Modified silicon dioxide microspheres for absorbing heavy metal lead ion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A modified silica microsphere for the adsorption of heavy metal lead ions is composed of the following parts by mass: 8 parts of water glass, 13.5 parts of ethyl orthosilicate, 4 parts of disodium calcium edetate, 4.3 parts of triethanolamine, 4 parts of ammonia water, 6 parts of humic acid, 4.8 parts of magnetic nucleating agent, 6 parts of organic bentonite, 18 parts of ethanol, 4 parts of aminopropyltrimethoxysilane, 4 parts of mordenite, and 4 parts of fatty alcohol polyoxyethylene ether.

[0018] A method for preparing modified silica microspheres for heavy metal lead ion adsorption, the preparation steps are as follows:

[0019] 1) Weighing raw materials by weight, pulverizing and blending humic acid, machine bentonite and mordenite to obtain mixture 1;

[0020] 2) Mix fatty alcohol polyoxyethylene ether and ethanol, ultrasonically disperse for 10 minutes, add magnetic nucleating agent, water glass and ethyl orthosilicate, heat to 58°C, stir at 65r / min for 15 minu...

Embodiment 2

[0024] A modified silica microsphere for the adsorption of heavy metal lead ions is composed of the following parts by mass: 9 parts of water glass, 14 parts of ethyl orthosilicate, 3 parts of calcium disodium edetate, 5.8 parts of triethanolamine, 8 parts of ammonia water, 8 parts of humic acid, 5 parts of magnetic nucleating agent, 7 parts of organic bentonite, 15 parts of ethanol, 6 parts of aminopropyltrimethoxysilane, 3 parts of mordenite, and 6 parts of fatty alcohol polyoxyethylene ether.

[0025] A method for preparing modified silica microspheres for heavy metal lead ion adsorption, the preparation steps are as follows:

[0026] 1) Weighing raw materials by weight, pulverizing and blending humic acid, machine bentonite and mordenite to obtain mixture 1;

[0027] 2) Mix fatty alcohol polyoxyethylene ether and ethanol, ultrasonically disperse for 11 minutes, add magnetic nucleating agent, water glass and ethyl orthosilicate, heat to 58°C, stir at 70r / min for 15 minutes,...

Embodiment 3

[0031] A modified silica microsphere for heavy metal lead ion adsorption is composed of the following parts by mass: 8.5 parts of water glass, 15 parts of ethyl orthosilicate, 5 parts of calcium disodium edetate, 5 parts of triethanolamine, 6 parts of ammonia water, 7 parts of humic acid, 7 parts of magnetic nucleating agent, 10 parts of organic bentonite, 20 parts of ethanol, 7 parts of aminopropyltrimethoxysilane, 5 parts of mordenite, and 7 parts of fatty alcohol polyoxyethylene ether.

[0032] A method for preparing modified silica microspheres for heavy metal lead ion adsorption, the preparation steps are as follows:

[0033] 1) Weighing raw materials by weight, pulverizing and blending humic acid, machine bentonite and mordenite to obtain mixture 1;

[0034] 2) Mix fatty alcohol polyoxyethylene ether and ethanol, ultrasonically disperse for 12 minutes, add magnetic nucleating agent, water glass and ethyl orthosilicate, heat to 55°C, stir at 75r / min for 15 minutes, cool t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
adsorption capacityaaaaaaaaaa
Login to View More

Abstract

The invention provides a modified silicon dioxide microspheres for absorbing heavy metal lead ions. The modified silicon dioxide microspheres are prepared from the following raw materials in parts by weight: 8-10 parts of water glass, 12-15 parts of tetraethoxysilane, 3-6 parts of sodium calcium edetate, 4-6 parts of triethanolamine, 3-9 parts of ammonia water, 5-8 parts of humic acid, 3-7 parts of a magnetic nucleating agent, 4-10 parts of organobentonite, 15-25 parts of ethyl alcohol, 4-7 parts of aminopropyl trimethoxysilane, 3-8 parts of mordenite and 4-7 parts of fatty alcohol-polyoxyethylene ether. A magnetic nucleating agent is coated with water glass and tetraethoxysilane as silicon sources to prepare the silicon dioxide microspheres; the silicon dioxide microspheres are filled and modified by an adsorption material; and the adsorption rate of the prepared modified silicon dioxide microspheres reaches 172.5mg / g.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a modified silica microsphere for heavy metal lead ion adsorption. Background technique [0002] Lead toxicity is persistent and highly accumulative. Nearly half of the world's lead is used to make batteries. The rest is used in gasoline anti-knock agents, construction materials, cables and explosives, etc. But only a quarter of lead is recycled. The vast majority of lead is discharged in the form of waste gas, waste residue, waste water, etc., causing large-scale lead pollution. Lead enters the human body directly through the human respiratory system, digestive system or skin, and has been deposited in the body, causing certain damage to almost all tissues and organs of the human body. Even if the blood lead level in the body is significantly reduced after getting rid of the polluted environment or after treatment, the damaged organs and tissues can no longer be repa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30C02F1/28C02F101/20
CPCB01J20/103B01J20/22B01J20/28009B01J20/28021C02F1/285C02F2101/20
Inventor 周春毅
Owner 吴中区穹窿山天仲高分子材料技术研究所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com